Here is the file (Note that when you copy-paste it into your project, replace all mentions of 'value' to whatever you want to shorten, then delete the value variable when all done. Do the same and replace all the mentions of "Text" to whatever text object you want to change.
BTW to add sub events, you can either right-click or two-finger-click on an event to open a menu, then select "Add sub-event". the quicker way to to press B when you have an event selected. B is the shortcut to adding a blank sub event.
And no, this event sheet doesn't use any sub events.
Hope this helps!